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United States Patent | 5,595,207 |
Jiles | January 21, 1997 |
A tension actuated gas shutoff valve having a body with an inlet for receiving gas flow along a flow path from upstream to downstream and a piston slidable within the body. The piston slides in response to a longitudinal force applied across the valve between a first position wherein flow through the valve is prevented and a second position wherein flow through the valve is permitted.
Inventors: | Jiles; Stephen L. (Anaheim, CA) |
Assignee: | Southern California Gas Company (Los Angeles, CA) |
Appl. No.: | 325663 |
Filed: | October 19, 1994 |
Current U.S. Class: | 137/38; 251/148; 251/347 |
Intern'l Class: | F16K 017/36 |
Field of Search: | 137/38,615 251/347,349,353,148 |
450679 | Apr., 1891 | Perkins | 251/353. |
2088656 | Aug., 1937 | Lamb | 251/347. |
2834520 | May., 1958 | Nyden. | |
2901153 | Aug., 1959 | Collins. | |
3219278 | Nov., 1965 | Santarelli | 251/353. |
4134416 | Jan., 1979 | Lallement et al. | |
4413643 | Nov., 1983 | Wiklund. | |
4449544 | May., 1984 | Vernor et al. | |
4817657 | Apr., 1989 | Kovacs. | |
5240025 | Aug., 1993 | Morris. | |
Foreign Patent Documents | |||
096845 | Jun., 1955 | FR. | |
114069 | Jul., 1982 | JP | 137/38. |
72777 | Apr., 1983 | JP | 137/38. |
799645 | Aug., 1958 | GB | 251/349. |
911799 | Nov., 1962 | GB. |